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Tax & Tax Saving
Calculate capital gains tax when you sell a home, reflecting the one-household, one-home exemption, long-term holding special deduction, and short-term and surcharge rates.
Acquisition tax, brokerage fees, legal scrivener fees, and capital expenditures such as extensions and window frames (excluding revenue expenditures such as wallpapering and boiler repairs)
Used for the one-household, one-home long-term holding special deduction
Choose '2 homes / 3+ homes in adjusted areas' if you are subject to the multi-home surcharge on homes in adjusted (regulated) areas (basic rate +20%p / +30%p). For one household, one home, the calculator assumes you meet the exemption requirements, such as holding for 2+ years (including 2 years of residence if the area was an adjusted area at acquisition).
Enter your values and press Calculate
Estimated capital gains tax (including local income tax)
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Capital gain
Long-term holding special deduction
Applied tax rate
Real estate capital gains tax
When you sell a home, tax starts from the capital gain; the one-household, one-home exemption, long-term holding special deduction, and basic deduction are subtracted in turn, and then the rate matching your holding period and number of homes is applied.
Enter the acquisition price, sale price, and necessary expenses.
Enter the holding period and residence period. Holding for under 2 years triggers the short-term rates.
Choose whether it is a one-household, one-home case or one subject to the multi-home surcharge in adjusted areas.
No. For a one-household, one-home owner, only the portion of the gain corresponding to the share of the sale price above KRW 1.2 billion is taxed. If you sell for KRW 1.5 billion, only 3/15 of the gain is taxable.
The preferential deduction for one-household, one-home owners (up to 80%) requires at least 2 years of residence. If you lived there for less than 2 years, the general deduction (2% per year, max 30%) applies.
The suspension of the multi-home capital gains surcharge ended on May 9, 2026 (for contracts signed by that date). If you sell a home in an adjusted area after that, the surcharge may apply. The government has proposed a temporary relaxation again in its 2026 tax reform plan, but be sure to check whether the National Assembly passes it.
Typical examples are acquisition tax, brokerage fees, legal scrivener fees, and capital expenditures such as balcony extensions or window frame replacement. Revenue expenditures such as wallpapering, flooring, and boiler repairs are not recognized.
You file and pay a preliminary return within 2 months from the end of the month in which you sold. If you sold multiple properties in the same year, you combine them in a final return in May of the following year.
Results are estimates based on your inputs and simplified assumptions, and are for reference only, not a basis for investment decisions.
Last updated: November 2, 2026
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